package com.lagou.rpcprovider;

import com.lagou.service.JSONSerializer;
import com.lagou.service.RpcDecoder;
import com.lagou.service.RpcRequest;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.handler.codec.string.StringDecoder;
import io.netty.handler.codec.string.StringEncoder;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * @author zhangxuyuan
 * @version 1.0
 * @date 2020/11/24
 */
@Configuration
public class ServiceBootstrapConfig {

    @Autowired
    UserServiceHandler userServiceHandler;

    @Bean
    public ServerBootstrap serverBootstrap()
    {
        NioEventLoopGroup bossGroup = new NioEventLoopGroup();
        NioEventLoopGroup  workGroup = new NioEventLoopGroup();

        //2.创建服务端的启动引导对象
        ServerBootstrap serverBootstrap = new ServerBootstrap();

        //3.配置启动引导对象
        serverBootstrap.group(bossGroup,workGroup)
            //设置通道为NIO
            .channel(NioServerSocketChannel.class)
            //创建监听channel
            .childHandler(new ChannelInitializer<NioSocketChannel>() {
                protected void initChannel(NioSocketChannel nioSocketChannel) throws Exception {
                    //获取管道对象
                    ChannelPipeline pipeline = nioSocketChannel.pipeline();
                    //给管道对象pipeLine 设置编码
                    pipeline.addLast(new StringEncoder());
                    pipeline.addLast(new RpcDecoder(RpcRequest.class,new JSONSerializer()));
                    //把我们自顶一个ChannelHander添加到通道中
                    pipeline.addLast(userServiceHandler);
                }
            });

        //4.绑定端口
        serverBootstrap.bind(8999);
        return serverBootstrap;
    }
}
